The Monocotyledons are divided into 7 Families:--

1. HELOBIEÆ. This family forms a group complete in itself. It

commences with hypogynous, perfect flowers, whose gynœcium is

apocarpous and terminates in epigynous and more or less reduced

forms.

2. GLUMIFLORÆ. These have as a starting point the same diagram

as the following families, but otherwise develope independently.

3. SPADICIFLORÆ. Also an independent branch, or perhaps two

different ones which terminate in much reduced forms.

4. ENANTIOBLASTÆ. These ought perhaps to be amalgamated with the

following family.

5. LILIIFLORÆ. These advance from forms with the typical diagram

and hypogynous flower, to epigynous and reduced forms.

A handbook of systematic botany · 第 217 / 316 题